This section is from the book "Harper's Guide To Wild Flowers", by Caroline A. Creevey. Also available from Amazon: Harper's Guide To Wild Flowers.
Color of rays, pale purple or blue. Leaves, long, narrow, entire, acute, with rough margins; the upper, small, crowded, sessile, often turned back. Heads, small, panicled, often a single one at the end of the branch. August to October.
Bushy Aster (Aster dumosus)
Common in sandy soil, along paths and roadsides, in fields, varying in color to a very pale violet or white. From Maine to Michigan and southward. A pretty, cheerful little aster, often covered with dust along the highways, but bravely putting out its blue flowers. (See illustration, p. 361.)
A. lateriflbrus-----Color, white or light purple. (See White
Flowers, p. 136.)
A. paniculatus-----Color, white or pale violet. (See White
Flowers, p. 136.)
 
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